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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 24 hours before end of estrus cycle






2. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






3. Microscopic - make sure not sterile - very few bulls are actually tested






4. Prevent the cow from getting an infection from the calve






5. Not under a timeline - cow can not be sold as steak






6. 336 days






7. 4-6 days






8. 283 days






9. Urinary calculi.






10. Sperm production






11. ~60 days before calving






12. S-shaped inside body - relaxes to be exposed for breeding. Disadvantges: muscles weaken with age - cannot always hold it in - exposed to harsh outside conditions or stepped on.


13. Produce testosterone. located between the seminiferous tubules






14. % of fat in milk. makes cheeses and ice cream. regulates cost of milk






15. Scar tissue plugs up chambers of udder






16. Contains and regulates the temp of the testes for sperm production






17. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






18. Microscopic - make sure not sterile - very few bulls are actually tested






19. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






20. Luteolysis happens because of the ____________ hormone






21. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






22. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






23. What helps regulate spermatogenesis?






24. 283 days






25. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells






26. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






27. Implies the amount of estrogen production






28. 265-285 days






29. 10-37 (21) days






30. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






31. Duct through penis that carries sperm and urine






32. What makes the milk flow through the mammary glands?






33. Allows extension of penis without fibro-elastic penis






34. Allows extension of penis without fibro-elastic penis






35. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






36. Depository for semen during insemination. where urine leaves the body






37. Sperm is produced here






38. (LH) causes female's egg to break (her period)






39. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)






40. Male on one pin and female on other side






41. 16-20 hours






42. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






43. 1-2 days






44. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






45. What makes the milk flow through the mammary glands?






46. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






47. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






48. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






49. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






50. Can survive ~7 days in cow. vast majority <48 hours